[TYPO3-dev] Howto Debug my extensions

[Tapio Markula]

Helmut Hummel kirjoitti:
> Hello,
> can anyone of you point out a dokument where I can read what
> possibilities there are in TYPO3 to debug an extension (db-queries,
> debug output, etc.)? I heard about syslog and devlog but I'm not sure
> how to use them.
> 
> Until now I do my debugging with pure echo statements, but I want to
> change to any already existing framework for that.
> 
> Thanks a lot
> 
> Helmut

debugging arrays and simple variables
t3lib_div::debug($varialbleName);

that doesn't necessary work for database queries